In 1956, Rolex introduced one the most iconic watches ever made: the Day-Date. The Day-Date was the first waterproof self-winding chronometer certified wristwatch with a day and date function. And to top it off, it was only available in gold or platinum! Rolex also designed a new three-link bracelet, known as the ‘President,’ to pair with this special watch. With exception of the most modern executions, the Day-Date comes exclusively in a 36mm case.
1977 is the year of innovation in the history of the Day-Date. Rolex improved the guaranteed waterproof to a depth of 100 meters. There was a transition from the Plexiglas crystal to sapphire mineral crystal. The new caliber 3055 was introduced and of course the change from four to five digits reference.
REF. 182xx and 183xx
In 1988 Rolex creates the new calibre 3155 which is based on the cal. 3135. The most important new feature of the newer caliber is the double-quick set which allows the independent regulation of the date and day of the week by only using the winding crown pulled out to the second notch.